Drain



July 28, 1936. H. VAN lDER HORST ET AL DRAIN Filed Sept. 5, 1935 INVENTORS THEIR ATTORNEYS Patented July 28, 19x36 miam i 1 if?? 4 Claims.

Our invention relatesto drainage equipment, and has among its objects and advantages the provision of an improved floor drain and the like in which means is embodied for closing the drain by the reverse flow of drainage to prevent such drainage from overiiowing.

In the accompanying drawing:

Fig. 1 is a sectional View illustrating our lloor drain;

Fig. 2 is a sectional View along the line 2--2 of Fig. 1; and

Fig. 3 is a sectional View of a different form.

In the embodiment selected to illustrate our invention, we make use of a section of tile I D comprising a conventional drain conduit associated with the door I2. Within the material of the floor I2, we imbed a metallic plate I4 having a wedge-shaped peripheral margin I6 anchored in the cement. This plate is provided with a threaded opening I8 for the reception of the threaded end of an upstanding pipe 20. The pipe extends above the oor line a sufficient distance to prevent the overflow of backwater, but includes means for the escape of water which may accumulate on the floor I2.

We provide the pipe 2l) with a plurality of openings 22 within which nipples 24 are positioned. The openings 22 terminate in iiared enlargements 26, whereby the outer ends of the nipples may be riveted at 28 for connecting purposes. The nipples are threaded at 30 and screwed into the ends of tubular extensions 32 formed integrally with and communicating with a depending tubular member 34. It will be noted that the nipples 24 are so positioned with respect to the floor level as to permit complete drainage of water upon the floor.

A groove 36 is formed in the inner wall of the tubular member 34 for the reception of the flange 38 carried by a rubber valve seat 4|] abutting the end of the member 34. Bores 42 are provided in the tubular member 34 for the reception of wires 44 shaped to loosely support a ball valve 46. 'I'his ball is normally positioned according to Fig. 1, at which time water accumulating on the floor I2 may flow into the tile I0.

In operation, should backwater rise in the tile I0, the ball 46 would engage the seat 40, thereby preventing the backwater from flooding the oor I2 through the medium of the tubular member 34 and the nipples 24. In connection with the rise of backwater, it is essential to provide facilities for accommodating destructive forces incident to the rising level of the water. To this DRAIN.

Horst and 'Ra'ymndE Hanson, 'wGhicagoj Ill.

lication September 3,5"1'935,"Serial!OILIYA I end, our construction operates through the medum of the ball 46 to prevent overow with respect to the floor I2, but permits the backwater to rise to its normal level within the pipe 28 because of the arrangement of the nipples 24, 5 whereby passages 48 are provided between the nipples.

Across the upper end of the pipe 28 weiplace a screen 50. The screen is attached to a ange 52 having a depending flange 54 embracing the outer 10 wall of the tube 20 and secured thereto by means of screws 56. 'I'he screen operates to provide venting facilities for the pipe 20 to accommodate the rising backwater, in addition to preventing large objects from being dropped into the pipe 15 2D, which might impair the e'icient operation of the ball 46. Similarly, screens may be attached to the pipe across the open nipples 24.

In Fig. 3, we illustrate a slightly diierent form of construction in which the pipe 58 correspond- 20 ing to the pipe 20 is provided with an opening 60 near its upper end for the reception of a nipple 62 connected with elbows 64 and 66, connected with pipes 68 and 10, respectively.

In many cases it may be desirable to provide 25 means for passing drainage accumulating upon the door or other places into the pipe 58 when the ball 18 is in its elevated position for preventing backwater from flowing through the nipples 14. With the ball 18 in its closing position with 30 respect to the nipples, water may be pumped into the tube 68 by means of a suitable pump indicated generally at 16 and connected with the pipe 68.

When the ball 18 is in its elevated position, the tube 68 has communication with the drain pipe with which it is associated so that the water pumped into the tube will seek the normal level of the backwater. We prefer to extend the pipe 18 below the ball 18 to eliminate noise due to splashing. Thus, we providey facilities for the disposition of water through the medium of the tube 68 even though the ball 18 is in its closed position. A

In constructing the device, the tubular member 34 is positioned inside the tube and the nipples 24 screwed into the extensions 32, after which the ends of the nipples are riveted.

Without further elaboration, the foregoing Will so fully explain our invention that others may, by applying current knowledge, readily adapt the same for use under various conditions of service.

We claim:

1. The combination with a oor having a drain pipe associated therewith, of a tube connected rising backwater, to prevent the backwater"V from floor drainage and delivering the same to the drainpipe, said means being so constructed and arranged as to establish communication between the tube and the drain pipe,r to permit backwater to rise into the tube, and valve means associated with said rst-named means and actuated by flooding the flour.y

3. The combination with a floor having a drain pipe associated therewith, of a tube mounted on the viioor in draining relation with the drain pipe, n

a spider mounted inside the tube and beng'rof tubular formation for conveying floor drainagel to the drain pipe, valve means associated with said spider and operated by backwater, to prevent the same from flooding the iioor,

ing to permit backwater to rise in the tube.

4. In a device ofV the type described,y a tube having a spider mountedtherein, said spider being of tubular constructionand constituting a conduit for drainage, and valve means associated with the spider and actuated by rising backwater,

said spider operat-vV to prevent the backwater Vfrom owing through 15 the spider, said spider being shaped to Ypermit backwater to rise into the tube.V

V`I-IEN'RY VAN DERV HORST.

RAYMOND E. HANSON. 

